Index: /trunk/FACT++/MAINPAGE
===================================================================
--- /trunk/FACT++/MAINPAGE	(revision 10427)
+++ /trunk/FACT++/MAINPAGE	(revision 10428)
@@ -29,4 +29,19 @@
 For example, if the GUI is not needed its compilation can be switched
 off by disabling QT4 support with \b --without-qt4.
+
+If you use a custom built root version on your system without QT 
+support, but have a distribution packe (e.g. debian package) with
+QT support available, you can give the path to root executables,
+for example, with <B>--with-rootsys=/usr/bin</B>. All other paths
+are extracted from subsequent calls to \b root-config.
+
+Hint: Sometimes installing root from packages doesn't work as
+expected (at least on my Ubuntu). It might be necessary to
+find some of the root packages with the libraries giving trouble
+and reinstall them after the root package was already installed.
+
+Running \b ./configure will take some time. It tries to really check
+carefully that everything needed is available on your system, so that you 
+get errors before you start compilation.
 
 In principle configure also supports
@@ -145,4 +160,10 @@
 - <A HREF="http://heasarc.gsfc.nasa.gov/docs/software/ftools/fv/">fv - A very simple viewer to FITS file contents</A>
 
+@subsection qtroot How to integrate root in QT?
+
+- <A HREF="http://doc.trolltech.com/4.3/designer-creating-custom-widgets.html">QT4: Creating custom widgets</A>
+- <A HREF="http://root.cern.ch/download/doc/26ROOTandQt.pdf">root: QT integration (pdf)</A>
+
+
 @section Available programs